iOS - NSNotificationCenter 多个UIKeyboard通知

发布于 2024-10-15 19:48:05 字数 890 浏览 2 评论 0原文

我有两个视图控制器，我们称它们为 A 和 B

(1) 在 AI 中显示包含文本字段的 popOver
（2）B中有一个UITextView用于简单的文本编辑

我必须管理A和B中的键盘来滚动键盘隐藏的内容。我知道如何重新定位内容。我需要的是一种对相同通知类型具有不同行为的方法，在我的 UIKeyboardWill(Show/Hide)Notification 中。
到目前为止我所做的：
(1) 我已在每个控制器中添加了此代码


    [[NSNotificationCenter defaultCenter] addObserver:self
                                  selector:@selector(keyboardDidAppear:)
                                      name:UIKeyboardWillShowNotification
                                    object:self.view.window

as I said I've added this code to A and B, but doesn't work as I expected. For instance When I click inside the textView two methods are triggered the keyboardDidAppear of A and the keyboardDidAppear of B, the same happens with the UIKeyboardWillHideNotification. I'm sure I'm doing something wrong, but honestly I can't figure it out.

原文

I have two view controllers let's call them A and B

(1) in A I show a popOver containing a textField
(2) in B there is an UITextView used for simple text editing

I Have to manage the keyboard in A and in B to scroll the content hidden by the keyboard. I know how to reposition the content. What I need is a way to have different behavior on the same notifications types that in my are UIKeyboardWill(Show/Hide)Notification.
What I've done so far :
(1) I've added this code in each controller


    [[NSNotificationCenter defaultCenter] addObserver:self
                                  selector:@selector(keyboardDidAppear:)
                                      name:UIKeyboardWillShowNotification
                                    object:self.view.window

as I said I've added this code to A and B, but doesn't work as I expected. For instance
When I click inside the textView two methods are triggered the keyboardDidAppear of A and the keyboardDidAppear of B, the same happens with the UIKeyboardWillHideNotification.
I'm sure I'm doing something wrong, but honestly I can't figure it out.

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○愚か者の日 2024-10-22 19:48:05

我解决了这个问题，改变了我注册通知的位置。为了确保只有 viewController 可见是接收通知的控制器，我在 vieWillAppear 中注册了通知，并在 viewWillDisappear 中删除了通知。

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桜花祭 2024-10-22 19:48:05

你的语法也有点混乱，你需要在@后面添加单词选择器...

[[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardDidAppear:)
                                                 name:UIKeyboardWillShowNotification
                                               object:self.view.window];

Your syntax is a bit messed too, you need to add the word selector after the @ ...

[[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardDidAppear:)
                                                 name:UIKeyboardWillShowNotification
                                               object:self.view.window];

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